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<head><meta charset="utf-8"><title>weekly meeting 2019-09-19 #54818 · t-compiler · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/index.html">t-compiler</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html">weekly meeting 2019-09-19 #54818</a></h3>

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<a name="176092578"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092578" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092578">(Sep 19 2019 at 12:12)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span> ; the triage meeting will be starting in 1 hours 48 minutes</p>



<a name="176092624"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092624" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092624">(Sep 19 2019 at 12:13)</a>:</h4>
<p>I will be doing <a href="#narrow/stream/131828-t-compiler/topic/pre-meeting.20triage.202019-09-19.20.2354818/near/176092612" title="#narrow/stream/131828-t-compiler/topic/pre-meeting.20triage.202019-09-19.20.2354818/near/176092612">pre-triage in a parallel topic</a></p>



<a name="176092648"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092648" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092648">(Sep 19 2019 at 12:13)</a>:</h4>
<p>this week we are scheduled to have a check-in from RLS 2.0 and Self-Profile</p>



<a name="176092664"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092664" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092664">(Sep 19 2019 at 12:13)</a>:</h4>
<p><span class="user-mention" data-user-id="124287">@mw</span> or <span class="user-mention" data-user-id="125250">@Wesley Wiser</span> : can one of you do the summary for WG-self-profile?</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092725" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092725">(Sep 19 2019 at 12:14)</a>:</h4>
<p><span class="user-mention" data-user-id="133169">@matklad</span> : can you do the summary for WG-rls-2.0?</p>



<a name="176092742"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092742" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092742">(Sep 19 2019 at 12:14)</a>:</h4>
<p>(to be clear, I'm just trying to give you all "plenty" of notice ahead of time)</p>



<a name="176092787"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092787" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092787">(Sep 19 2019 at 12:15)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> sure! What kind of summary would be most interesting? last week / last month / next month?</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092881" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092881">(Sep 19 2019 at 12:16)</a>:</h4>
<p>I assume that everything that's happened since the last check-in with WG-rls-2.0 is up for grabs.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092890" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092890">(Sep 19 2019 at 12:16)</a>:</h4>
<p>/me looks to see when that was</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176092954" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176092954">(Sep 19 2019 at 12:17)</a>:</h4>
<p>last sync was ... in <a href="https://rust-lang.github.io/compiler-team/minutes/triage-meeting/2019-05-02/" target="_blank" title="https://rust-lang.github.io/compiler-team/minutes/triage-meeting/2019-05-02/">May (?)</a></p>



<a name="176093059"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093059" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093059">(Sep 19 2019 at 12:18)</a>:</h4>
<p>oh well the minutes from the last N triage meetings seems to be missing from this site...</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093177" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093177">(Sep 19 2019 at 12:20)</a>:</h4>
<p>/me wonders why that is; the <a href="https://github.com/rust-lang/compiler-team/tree/gh-pages/minutes" target="_blank" title="https://github.com/rust-lang/compiler-team/tree/gh-pages/minutes">minutes in repo</a> seems up to date</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093199" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093199">(Sep 19 2019 at 12:20)</a>:</h4>
<p>yeah, it's been a while since the last check-in, which definitely happen before mozilla all-hands and vacations. Guess I'll give an n-months update then</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093238" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093238">(Sep 19 2019 at 12:21)</a>:</h4>
<p><span class="user-mention" data-user-id="125250">@Wesley Wiser</span> any idea why the <a href="https://rust-lang.github.io/compiler-team/" target="_blank" title="https://rust-lang.github.io/compiler-team/">site</a> doesn't seem to include the triage meeting notes since 2019-06-20 (despite their presence in <a href="https://github.com/rust-lang/compiler-team/tree/master/content/minutes/triage-meeting" target="_blank" title="https://github.com/rust-lang/compiler-team/tree/master/content/minutes/triage-meeting">repo source</a>) ?</p>



<a name="176093365"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093365" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093365">(Sep 19 2019 at 12:23)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> if I'm not wrong that list is hard coded, I noticed that and opened an issue a while back</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093370" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093370">(Sep 19 2019 at 12:23)</a>:</h4>
<p>let me check</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093456" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093456">(Sep 19 2019 at 12:24)</a>:</h4>
<p><a href="https://github.com/rust-lang/compiler-team/issues/153" target="_blank" title="https://github.com/rust-lang/compiler-team/issues/153">https://github.com/rust-lang/compiler-team/issues/153</a></p>



<a name="176093487"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093487" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093487">(Sep 19 2019 at 12:25)</a>:</h4>
<p>was <span class="user-mention" data-user-id="125250">@Wesley Wiser</span> who opened the issue actually :)</p>



<a name="176093509"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093509" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093509">(Sep 19 2019 at 12:25)</a>:</h4>
<p>thanks to both of you, okay</p>



<a name="176093816"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176093816" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176093816">(Sep 19 2019 at 12:29)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> Yes, I can give an update for WG-self-profile</p>



<a name="176095168"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176095168" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176095168">(Sep 19 2019 at 12:48)</a>:</h4>
<blockquote>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> if I'm not wrong that list is hard coded, I noticed that and opened an issue a while back</p>
</blockquote>
<p>oh dear we should... fix that :)</p>



<a name="176095760"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176095760" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Santiago Pastorino <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176095760">(Sep 19 2019 at 12:54)</a>:</h4>
<blockquote>
<blockquote>
<p><span class="user-mention silent" data-user-id="116083">pnkfelix</span> if I'm not wrong that list is hard coded, I noticed that and opened an issue a while back</p>
</blockquote>
<p>oh dear we should... fix that :)</p>
</blockquote>
<p>yes, I can try to do something simple I guess</p>



<a name="176098449"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176098449" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176098449">(Sep 19 2019 at 13:25)</a>:</h4>
<p><span aria-label="construction worker" class="emoji emoji-1f477" role="img" title="construction worker">:construction_worker:</span> request for help: "Better error message when attempting to instantiate tuple structs with private fields" <a href="https://github.com/rust-lang/rust/issues/58017" target="_blank" title="https://github.com/rust-lang/rust/issues/58017">#58017</a> is a bug that has been waiting for someone to fix it since January (potentially even earlier, as it hasn't even been bisected beyond knowing that its a regression compared to 1.16); there's lots of ways anyone can help here.</p>



<a name="176098577"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176098577" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176098577">(Sep 19 2019 at 13:26)</a>:</h4>
<p>(and also, if no one takes it, I might downgrade it to P-medium <span aria-label="wolf" class="emoji emoji-1f43a" role="img" title="wolf">:wolf:</span> )</p>



<a name="176098613"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176098613" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176098613">(Sep 19 2019 at 13:26)</a>:</h4>
<p>It does not seem like a P-high bug to me :)</p>



<a name="176102144"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102144" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102144">(Sep 19 2019 at 14:00)</a>:</h4>
<p>okay</p>



<a name="176102151"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102151" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102151">(Sep 19 2019 at 14:00)</a>:</h4>
<p>Hi <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span></p>



<a name="176102226"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102226" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102226">(Sep 19 2019 at 14:01)</a>:</h4>
<p>there are five minutes for general announcements.</p>



<a name="176102295"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102295" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102295">(Sep 19 2019 at 14:02)</a>:</h4>
<p><strong>Reminder for <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span>:</strong> There is a design meeting <strong>tomorrow</strong> at this time. The subject will be the <a href="https://github.com/rust-lang/compiler-team/issues/166" target="_blank" title="https://github.com/rust-lang/compiler-team/issues/166">the **target tier policy** meeting</a> that <span class="user-mention" data-user-id="239881">@Josh Triplett</span> proposed. You might want to take a look at <a href="https://gist.github.com/joshtriplett/40191791541ea2a3d61b7fe1d381a0e7" target="_blank" title="https://gist.github.com/joshtriplett/40191791541ea2a3d61b7fe1d381a0e7">the gist that they prepared</a> which contains more details.</p>



<a name="176102318"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102318" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102318">(Sep 19 2019 at 14:02)</a>:</h4>
<p><span aria-label="construction worker" class="emoji emoji-1f477" role="img" title="construction worker">:construction_worker:</span> here is a link to <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818/near/176098449" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818/near/176098449">my earlier request for help</a></p>



<a name="176102448"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102448" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102448">(Sep 19 2019 at 14:03)</a>:</h4>
<p>Also, <strong>the week after that is the next planning meeting</strong> -- we've got a few meeting proposals, so maybe take a look. Maybe open one of your own. Don't feel intimidated -- even just a few sentences is good enough, I'd say!</p>



<a name="176102455"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102455" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102455">(Sep 19 2019 at 14:03)</a>:</h4>
<p>more generally,; there are currently <strong>eight</strong> <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+is%3Aissue+label%3AT-compiler+label%3AP-high+no%3Aassignee">unassigned P-high</a> issues</p>



<a name="176102549"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102549" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102549">(Sep 19 2019 at 14:04)</a>:</h4>
<blockquote>
<p>Maybe open one of your own.</p>
</blockquote>
<p>(indeed, part of my plan for this meeting is to liberally turn nominated issues into meeting proposals, if we cannot resolve them in the time alloted here)</p>



<a name="176102607"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102607" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102607">(Sep 19 2019 at 14:05)</a>:</h4>
<p>but i'd welcome other people doing that in my stead. :)</p>



<a name="176102783"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102783" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102783">(Sep 19 2019 at 14:06)</a>:</h4>
<p>okay so that's all the announcements for now. (If anyone has other announcements, please <em>private message</em> me and I'll allocate time at the end for them.)</p>



<a name="176102832"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102832" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102832">(Sep 19 2019 at 14:07)</a>:</h4>
<p>so, first things first: beta-nominations</p>



<a name="176102836"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102836" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102836">(Sep 19 2019 at 14:07)</a>:</h4>
<p>we have two</p>



<a name="176102859"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102859" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102859">(Sep 19 2019 at 14:07)</a>:</h4>
<p>beta nom 1/2: "fn ptr is structural match" <a href="https://github.com/rust-lang/rust/issues/64431" target="_blank" title="https://github.com/rust-lang/rust/issues/64431">#64431</a></p>



<a name="176102941"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102941" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102941">(Sep 19 2019 at 14:08)</a>:</h4>
<p>I say backport; well tested, narrow code changes.</p>



<a name="176102953"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176102953" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176102953">(Sep 19 2019 at 14:08)</a>:</h4>
<p>yeah I think this is uncontroversial</p>



<a name="176103008"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103008" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103008">(Sep 19 2019 at 14:09)</a>:</h4>
<p>(devil's advocate: the use-case being addressed is pretty niche, and does have a work around.)</p>



<a name="176103016"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103016" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103016">(Sep 19 2019 at 14:09)</a>:</h4>
<p>but okay, lets just approve it.</p>



<a name="176103120"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103120" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103120">(Sep 19 2019 at 14:10)</a>:</h4>
<p>beta nom 2/2: "fix nounwind attribute logic" <a href="https://github.com/rust-lang/rust/issues/63909" target="_blank" title="https://github.com/rust-lang/rust/issues/63909">#63909</a></p>



<a name="176103139"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103139" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103139">(Sep 19 2019 at 14:11)</a>:</h4>
<p>move on, not getting backported.</p>



<a name="176103168"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103168" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103168">(Sep 19 2019 at 14:11)</a>:</h4>
<p>I haven't had a chance to review the dialogue here</p>



<a name="176103278"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103278" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103278">(Sep 19 2019 at 14:12)</a>:</h4>
<p>at time when niko posted "rfcbot merge", <span class="user-mention" data-user-id="116009">@nikomatsakis</span> said "like to go ahead and merge and beta-nominate this"</p>



<a name="176103347"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103347" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103347">(Sep 19 2019 at 14:13)</a>:</h4>
<p>however, I will admit</p>



<a name="176103369"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103369" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103369">(Sep 19 2019 at 14:13)</a>:</h4>
<p>...</p>



<a name="176103382"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103382" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103382">(Sep 19 2019 at 14:13)</a>:</h4>
<p>/me re-reads</p>



<a name="176103396"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103396" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103396">(Sep 19 2019 at 14:13)</a>:</h4>
<p>shouldn't this at least land first?</p>



<a name="176103397"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103397" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103397">(Sep 19 2019 at 14:13)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> I would suggest not spending too much meeting time on this; it's clearly not getting backported</p>



<a name="176103411"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103411" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103411">(Sep 19 2019 at 14:13)</a>:</h4>
<p>I don't see how that follows</p>



<a name="176103413"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103413" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103413">(Sep 19 2019 at 14:13)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/62603" target="_blank" title="https://github.com/rust-lang/rust/issues/62603">#62603</a> landed</p>



<a name="176103454"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103454" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103454">(Sep 19 2019 at 14:14)</a>:</h4>
<p>and was backported</p>



<a name="176103486"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103486" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103486">(Sep 19 2019 at 14:14)</a>:</h4>
<p>/me still re-reading</p>



<a name="176103509"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103509" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103509">(Sep 19 2019 at 14:14)</a>:</h4>
<p>I'm opposed to <a href="https://github.com/rust-lang/rust/issues/63909" target="_blank" title="https://github.com/rust-lang/rust/issues/63909">#63909</a> landing on nightly ~&gt; not landing on beta</p>



<a name="176103526"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103526" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103526">(Sep 19 2019 at 14:14)</a>:</h4>
<p><a href="https://github.com/rust-lang/rust/issues/63909" target="_blank" title="https://github.com/rust-lang/rust/issues/63909">#63909</a> is a PR that has seen no testing in the wild and we are days before beta promotion</p>



<a name="176103560"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103560" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103560">(Sep 19 2019 at 14:15)</a>:</h4>
<p>right, I am basically inclined to agree with that logic</p>



<a name="176103578"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103578" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103578">(Sep 19 2019 at 14:15)</a>:</h4>
<p>that we need to have the PR get testing in the wild</p>



<a name="176103580"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103580" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103580">(Sep 19 2019 at 14:15)</a>:</h4>
<p>but I also want to understand</p>



<a name="176103595"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103595" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103595">(Sep 19 2019 at 14:15)</a>:</h4>
<p>what is the ramification of landing <em>and</em> backporting <a href="https://github.com/rust-lang/rust/issues/62603" target="_blank" title="https://github.com/rust-lang/rust/issues/62603">#62603</a></p>



<a name="176103604"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103604" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103604">(Sep 19 2019 at 14:15)</a>:</h4>
<p>without landing <a href="https://github.com/rust-lang/rust/issues/63909" target="_blank" title="https://github.com/rust-lang/rust/issues/63909">#63909</a></p>



<a name="176103664"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103664" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103664">(Sep 19 2019 at 14:16)</a>:</h4>
<p>i.e. what state is the beta in now, in terms of what behavior one gets here?</p>



<a name="176103667"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103667" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103667">(Sep 19 2019 at 14:16)</a>:</h4>
<p>My understanding is that this has been the status quo for years.</p>



<a name="176103720"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103720" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103720">(Sep 19 2019 at 14:16)</a>:</h4>
<p>oh right oh right</p>



<a name="176103722"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103722" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103722">(Sep 19 2019 at 14:16)</a>:</h4>
<p>god what a mess</p>



<a name="176103758"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103758" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103758">(Sep 19 2019 at 14:17)</a>:</h4>
<p>okay so landing <a href="https://github.com/rust-lang/rust/issues/62603" target="_blank" title="https://github.com/rust-lang/rust/issues/62603">#62603</a> and <em>not</em> landing <a href="https://github.com/rust-lang/rust/issues/63909" target="_blank" title="https://github.com/rust-lang/rust/issues/63909">#63909</a> is in fact maintaining status quo</p>



<a name="176103768"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103768" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103768">(Sep 19 2019 at 14:17)</a>:</h4>
<p>is my understanding</p>



<a name="176103787"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103787" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103787">(Sep 19 2019 at 14:17)</a>:</h4>
<p>it may be non-ideal from various other viewpoints</p>



<a name="176103791"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103791" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103791">(Sep 19 2019 at 14:17)</a>:</h4>
<p>(I'm gonna remove beta-nominated until such time as this lands to not revisit this each time.)</p>



<a name="176103795"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103795" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103795">(Sep 19 2019 at 14:17)</a>:</h4>
<p>My current position:</p>
<ul>
<li>I think it is fine not to backport this.</li>
<li>I think there is an interesting discussion to be had about whether we should land it -- obviously there are differing opinions about what the right incentives are and so forth.</li>
<li>I think for the purposes of this meeting we should probably move on -- it seems ok to me if the PR lands on nightly (or not at all, as we decide).</li>
</ul>



<a name="176103805"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103805" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103805">(Sep 19 2019 at 14:17)</a>:</h4>
<p>but our status quo is pretty much in a perpetual state of non-idealness.</p>



<a name="176103923"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176103923" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176103923">(Sep 19 2019 at 14:18)</a>:</h4>
<blockquote>
<p>but our status quo is pretty much in a perpetual state of non-idealness.</p>
</blockquote>
<p>well, it's software, right? <code>:P</code></p>



<a name="176104004"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104004" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104004">(Sep 19 2019 at 14:19)</a>:</h4>
<p><span class="user-mention" data-user-id="124287">@mw</span> hey, at least it's not hardware ;)</p>



<a name="176104076"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104076" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104076">(Sep 19 2019 at 14:20)</a>:</h4>
<p>okay so that's all the beta nominations</p>



<a name="176104125"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104125" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104125">(Sep 19 2019 at 14:20)</a>:</h4>
<p>there are no stable nominations</p>



<a name="176104173"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104173" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104173">(Sep 19 2019 at 14:21)</a>:</h4>
<p>there is one PR marked "waiting on team": "Turn HIR indexing into a query" <a href="https://github.com/rust-lang/rust/issues/59064" target="_blank" title="https://github.com/rust-lang/rust/issues/59064">#59064</a></p>



<a name="176104196"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104196" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104196">(Sep 19 2019 at 14:21)</a>:</h4>
<p>but I have allocated <a href="https://github.com/rust-lang/compiler-team/issues/175" target="_blank" title="https://github.com/rust-lang/compiler-team/issues/175">compiler-team#175</a> for this</p>



<a name="176104198"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104198" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104198">(Sep 19 2019 at 14:21)</a>:</h4>
<p>I believe you scheduled a design meeting proposal around this topic</p>



<a name="176104241"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104241" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104241">(Sep 19 2019 at 14:22)</a>:</h4>
<p>so we need not discuss it here)</p>



<a name="176104271"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104271" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104271">(Sep 19 2019 at 14:22)</a>:</h4>
<p>so that just leaves ... <em>five</em> <a href="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+label%3AI-nominated+label%3AT-compiler" target="_blank" title="https://github.com/rust-lang/rust/issues?utf8=%E2%9C%93&amp;q=is%3Aopen+label%3AI-nominated+label%3AT-compiler">nominated issues</a></p>



<a name="176104297"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104297" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104297">(Sep 19 2019 at 14:22)</a>:</h4>
<p>nom 1/5: "Duplicate error code usage lint removed" <a href="https://github.com/rust-lang/rust/issues/64426" target="_blank" title="https://github.com/rust-lang/rust/issues/64426">#64426</a></p>



<a name="176104304"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104304" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104304">(Sep 19 2019 at 14:22)</a>:</h4>
<p>so I don't know when this happened</p>



<a name="176104333"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104333" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104333">(Sep 19 2019 at 14:23)</a>:</h4>
<p>but apparently we lost those checks for ensuring you didn't have two different diagnostics using the same error code</p>



<a name="176104352"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104352" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104352">(Sep 19 2019 at 14:23)</a>:</h4>
<p>and this issue asks the question: Do we need those lints anyway?</p>



<a name="176104375"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104375" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104375">(Sep 19 2019 at 14:23)</a>:</h4>
<p>personally, I don't think it was that terrible to deal with</p>



<a name="176104377"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104377" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104377">(Sep 19 2019 at 14:23)</a>:</h4>
<p>Recently, <span class="user-mention" data-user-id="116122">@simulacrum</span>  removed the hardcoded register macros and made them into ordinary macros...?</p>



<a name="176104443"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104443" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104443">(Sep 19 2019 at 14:24)</a>:</h4>
<p>(and I say this as someone who had to deal with a ton of diagnostics "duplication" between AST-borrowck and NLL)</p>



<a name="176104478"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104478" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104478">(Sep 19 2019 at 14:24)</a>:</h4>
<p>and I <em>am</em> scared of the potential for error codes to silently collide due to a bors merge</p>



<a name="176104531"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104531" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104531">(Sep 19 2019 at 14:25)</a>:</h4>
<p>I personally don't think the lints add lotsa values, but if we have them, let's do it via tidy and not via compiler hacks</p>



<a name="176104566"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104566" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104566">(Sep 19 2019 at 14:25)</a>:</h4>
<p>I was not a fan of the old setup, but I agree with <span class="user-mention" data-user-id="116083">@pnkfelix</span> that duplicates <strong>will</strong> arise if we don't have some mechanism for checking.</p>



<a name="176104575"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104575" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104575">(Sep 19 2019 at 14:25)</a>:</h4>
<p>I don't care much whether it's in tidy or elsewhere</p>



<a name="176104579"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104579" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104579">(Sep 19 2019 at 14:25)</a>:</h4>
<p>My opinion is that we probably need or want the definition duplication error but don't need use site checking</p>



<a name="176104600"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104600" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104600">(Sep 19 2019 at 14:26)</a>:</h4>
<p>What was use-site checking?</p>



<a name="176104646"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104646" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104646">(Sep 19 2019 at 14:26)</a>:</h4>
<p>ah interesting</p>



<a name="176104648"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104648" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104648">(Sep 19 2019 at 14:26)</a>:</h4>
<p>I found it annoying that there could be exactly one use</p>



<a name="176104661"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104661" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104661">(Sep 19 2019 at 14:26)</a>:</h4>
<p>I often wanted more than one</p>



<a name="176104681"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104681" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104681">(Sep 19 2019 at 14:26)</a>:</h4>
<p>(this led to things like <code>span_err("{}", the_message)</code>)</p>



<a name="176104686"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104686" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104686">(Sep 19 2019 at 14:26)</a>:</h4>
<p>I wasn't able to find the time to investigate what we used to do for use site checking but it seems like no one knows why that's useful</p>



<a name="176104691"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104691" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104691">(Sep 19 2019 at 14:26)</a>:</h4>
<p>okay, yes</p>



<a name="176104694"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104694" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104694">(Sep 19 2019 at 14:26)</a>:</h4>
<p>yes, tidy or something should check that no error code is re-used for different things, but not much else is needed</p>



<a name="176104699"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104699" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104699">(Sep 19 2019 at 14:26)</a>:</h4>
<p>(anyway, another alternative would be to move from "numeric" error codes to more descriptive ones, like <code>ERR_ILLEGAL_BORROW</code> or something)</p>



<a name="176104707"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104707" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104707">(Sep 19 2019 at 14:26)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> agreed; I've often wanted to duplicate sometimes when the error was very similar</p>



<a name="176104709"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104709" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104709">(Sep 19 2019 at 14:26)</a>:</h4>
<p>the main motivation for use-site checking that I could imagine would be to try to prevent divergence in the messaging</p>



<a name="176104728"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104728" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104728">(Sep 19 2019 at 14:27)</a>:</h4>
<p>but 1. it doesn't prevent people working around it (as in, injecting divergence deliberately), and 2 ...</p>



<a name="176104732"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104732" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104732">(Sep 19 2019 at 14:27)</a>:</h4>
<p>more context: <a href="https://github.com/rust-lang/rust/pull/64139" target="_blank" title="https://github.com/rust-lang/rust/pull/64139">https://github.com/rust-lang/rust/pull/64139</a> was the PR that did the change; pretty nice cleanups!</p>



<a name="176104741"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104741" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104741">(Sep 19 2019 at 14:27)</a>:</h4>
<p>2. I'm willing to let those things crop up and deal with it as its discovered.</p>



<a name="176104815"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104815" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104815">(Sep 19 2019 at 14:28)</a>:</h4>
<p>Okay, so action item is to make sure we check for no duplicate definitions but otherwise we will not readd functionality of use site checking</p>



<a name="176104820"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104820" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104820">(Sep 19 2019 at 14:28)</a>:</h4>
<blockquote>
<p>(anyway, another alternative would be to move from "numeric" error codes to more descriptive ones, like <code>ERR_ILLEGAL_BORROW</code> or something)</p>
</blockquote>
<p>(this has the advantage of making merge conflicts less problematic)</p>



<a name="176104860"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104860" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104860">(Sep 19 2019 at 14:28)</a>:</h4>
<p>I think someone is already doing this (but I can be the assignee to make sure it happens)</p>



<a name="176104867"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104867" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104867">(Sep 19 2019 at 14:28)</a>:</h4>
<p>that sounds <span class="user-mention" data-user-id="116122">@simulacrum</span> like the easiest short-term thing; I'd be in favor of reconsidering the whole execution of codes, but I also don't consider it very urgent</p>



<a name="176104875"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104875" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104875">(Sep 19 2019 at 14:28)</a>:</h4>
<p><span class="user-mention" data-user-id="116122">@simulacrum</span> are we doing this in tidy?</p>



<a name="176104892"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104892" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104892">(Sep 19 2019 at 14:29)</a>:</h4>
<p>cc <span class="user-mention" data-user-id="132040">@Manish Goregaokar</span> last time this came up elsewhere, I brought up the potential integration with translation, or more structured diagnostics, too</p>



<a name="176104909"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104909" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104909">(Sep 19 2019 at 14:29)</a>:</h4>
<p>(and there might already be people working on those things)</p>



<a name="176104911"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104911" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104911">(Sep 19 2019 at 14:29)</a>:</h4>
<p>lets not let this blow up into a second system syndrome</p>



<a name="176104919"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104919" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104919">(Sep 19 2019 at 14:29)</a>:</h4>
<p>(or in our case, 22nd system ...)</p>



<a name="176104939"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104939" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> eddyb <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104939">(Sep 19 2019 at 14:29)</a>:</h4>
<p>catch 22 system (as is appropriate for bootstrapped compilers)</p>



<a name="176104944"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176104944" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176104944">(Sep 19 2019 at 14:29)</a>:</h4>
<p>(the old system was ungreat for compiling crates separately... cc the IDE/library-ification discussions)</p>



<a name="176105012"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105012" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105012">(Sep 19 2019 at 14:30)</a>:</h4>
<p>okay so is there anyone who objects to <span class="user-mention" data-user-id="116122">@simulacrum</span> 's <a href="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818/near/176104815" title="#narrow/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818/near/176104815">plan</a>?</p>



<a name="176105059"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105059" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105059">(Sep 19 2019 at 14:30)</a>:</h4>
<p>alright lets move along</p>



<a name="176105068"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105068" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105068">(Sep 19 2019 at 14:30)</a>:</h4>
<p>I'm going to assume that <a href="https://github.com/rust-lang/rust/issues/63909" target="_blank" title="https://github.com/rust-lang/rust/issues/63909">#63909</a> is nominated for the lang team</p>



<a name="176105119"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105119" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105119">(Sep 19 2019 at 14:31)</a>:</h4>
<p>nom 3/5: "Make the generator-locals debuginfo test resilient to re-ordering." <a href="https://github.com/rust-lang/rust/issues/63742" target="_blank" title="https://github.com/rust-lang/rust/issues/63742">#63742</a></p>



<a name="176105137"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105137" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105137">(Sep 19 2019 at 14:31)</a>:</h4>
<p>this should probably be tagged A-async-await</p>



<a name="176105138"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105138" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105138">(Sep 19 2019 at 14:31)</a>:</h4>
<p>I think the nomination can be cleared</p>



<a name="176105146"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105146" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105146">(Sep 19 2019 at 14:31)</a>:</h4>
<p>and let us triage it</p>



<a name="176105152"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105152" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105152">(Sep 19 2019 at 14:31)</a>:</h4>
<p>(unless we've resolved it to our satisfaction)</p>



<a name="176105154"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105154" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105154">(Sep 19 2019 at 14:31)</a>:</h4>
<p>we talked about it last week</p>



<a name="176105163"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105163" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105163">(Sep 19 2019 at 14:31)</a>:</h4>
<p>okay yeah</p>



<a name="176105225"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105225" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105225">(Sep 19 2019 at 14:32)</a>:</h4>
<p>sorry, I <em>really</em> shoud be checking that as part of pre-triage each week</p>



<a name="176105239"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105239" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105239">(Sep 19 2019 at 14:32)</a>:</h4>
<p>/me makes a note</p>



<a name="176105257"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105257" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105257">(Sep 19 2019 at 14:32)</a>:</h4>
<p>nom 4/5: "Codegen forgets array size when used with iterators" <a href="https://github.com/rust-lang/rust/issues/63552" target="_blank" title="https://github.com/rust-lang/rust/issues/63552">#63552</a></p>



<a name="176105272"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105272" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105272">(Sep 19 2019 at 14:33)</a>:</h4>
<p>ah I bet this was nominated for prioritization</p>



<a name="176105284"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105284" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105284">(Sep 19 2019 at 14:33)</a>:</h4>
<p>does anyone want to take it on?</p>



<a name="176105288"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105288" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105288">(Sep 19 2019 at 14:33)</a>:</h4>
<p>(its only P-medium)</p>



<a name="176105300"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105300" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105300">(Sep 19 2019 at 14:33)</a>:</h4>
<p>((but might be fun))</p>



<a name="176105301"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105301" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105301">(Sep 19 2019 at 14:33)</a>:</h4>
<p>good example for LLVM ICE-breakers team that I've not quite gotten around to setting up</p>



<a name="176105303"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105303" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105303">(Sep 19 2019 at 14:33)</a>:</h4>
<p>in any case, clearing nomination.</p>



<a name="176105305"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105305" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105305">(Sep 19 2019 at 14:33)</a>:</h4>
<p>I'd say de-nominate and move on :)</p>



<a name="176105332"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105332" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105332">(Sep 19 2019 at 14:33)</a>:</h4>
<p>maybe <span class="user-mention" data-user-id="125270">@scottmcm</span>  is interested in ^--- also</p>



<a name="176105334"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105334" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105334">(Sep 19 2019 at 14:33)</a>:</h4>
<p>nom 5/5: "Stable rustc always panics on arm/musl" <a href="https://github.com/rust-lang/rust/issues/60297" target="_blank" title="https://github.com/rust-lang/rust/issues/60297">#60297</a></p>



<a name="176105337"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105337" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105337">(Sep 19 2019 at 14:33)</a>:</h4>
<p>someone <strong>please</strong> take this bug</p>



<a name="176105347"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105347" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105347">(Sep 19 2019 at 14:33)</a>:</h4>
<p><span aria-label="wink" class="emoji emoji-1f609" role="img" title="wink">:wink:</span></p>



<a name="176105417"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105417" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105417">(Sep 19 2019 at 14:34)</a>:</h4>
<p>I downgraded it to P-medium because the platform is tier 2, IIUC</p>



<a name="176105437"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105437" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105437">(Sep 19 2019 at 14:34)</a>:</h4>
<p>and oh</p>



<a name="176105460"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105460" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105460">(Sep 19 2019 at 14:34)</a>:</h4>
<p><span class="user-mention" data-user-id="116009">@nikomatsakis</span> , you said some people tweeted back to you that this may be working now?</p>



<a name="176105486"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105486" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105486">(Sep 19 2019 at 14:35)</a>:</h4>
<p>yeah, they did, not sure what's going on</p>



<a name="176105488"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105488" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105488">(Sep 19 2019 at 14:35)</a>:</h4>
<p>maybe I'll just close it and let people reopen it if its indeed still broken.</p>



<a name="176105499"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105499" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105499">(Sep 19 2019 at 14:35)</a>:</h4>
<p>okay</p>



<a name="176105502"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105502" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105502">(Sep 19 2019 at 14:35)</a>:</h4>
<blockquote>
<p>Someone said they heard on twitter that it's working now. Closing!</p>
</blockquote>



<a name="176105512"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105512" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105512">(Sep 19 2019 at 14:35)</a>:</h4>
<p>you think that's a joke</p>



<a name="176105565"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105565" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105565">(Sep 19 2019 at 14:36)</a>:</h4>
<p>to me, its a solution to a long standing problem.</p>



<a name="176105570"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105570" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105570">(Sep 19 2019 at 14:36)</a>:</h4>
<p>okay</p>



<a name="176105579"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105579" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105579">(Sep 19 2019 at 14:36)</a>:</h4>
<p>Awesome we actually discussed all the nominated issues ....?!?</p>



<a name="176105588"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105588" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105588">(Sep 19 2019 at 14:36)</a>:</h4>
<p><a href="https://twitter.com/raggi/status/1172161378024476682" target="_blank" title="https://twitter.com/raggi/status/1172161378024476682">https://twitter.com/raggi/status/1172161378024476682</a></p>
<div class="inline-preview-twitter"><div class="twitter-tweet"><a href="https://twitter.com/raggi/status/1172161378024476682" target="_blank"><img class="twitter-avatar" src="https://pbs.twimg.com/profile_images/1157095485993189377/Gfzp986T_normal.jpg"></a><p><a href="https://twitter.com/nikomatsakis" target="_blank" title="https://twitter.com/nikomatsakis">@nikomatsakis</a> We use a musl fork in fuchsia on arm all the time and it's not exhibiting that behavior. Our program loading and init are quite different from Linux etc though.</p><span>- James Tucker (@raggi)</span></div></div>



<a name="176105590"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105590" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105590">(Sep 19 2019 at 14:36)</a>:</h4>
<p>and I didn't transcribe any of them to design meeting proposals ???!</p>



<a name="176105594"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105594" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105594">(Sep 19 2019 at 14:36)</a>:</h4>
<p>I guess maybe a different scenario :)</p>



<a name="176105617"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105617" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105617">(Sep 19 2019 at 14:36)</a>:</h4>
<p>well this is awesome</p>



<a name="176105659"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105659" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105659">(Sep 19 2019 at 14:37)</a>:</h4>
<p><span class="user-mention" data-user-id="124287">@mw</span> you still here? Want to provide a checkin from WG-self-profile ?</p>



<a name="176105671"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105671" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105671">(Sep 19 2019 at 14:37)</a>:</h4>
<p>yup</p>



<a name="176105683"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105683" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105683">(Sep 19 2019 at 14:37)</a>:</h4>
<p>WG-self-profile actually had its first meeting in months today.</p>



<a name="176105731"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105731" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105731">(Sep 19 2019 at 14:38)</a>:</h4>
<p>There are 3 main things the WG is looking into at the moment:</p>



<a name="176105745"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105745" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105745">(Sep 19 2019 at 14:38)</a>:</h4>
<ul>
<li>Getting the "minimum viable product" done as planned (<a href="https://github.com/rust-lang/rust/issues/58967" target="_blank" title="https://github.com/rust-lang/rust/issues/58967">https://github.com/rust-lang/rust/issues/58967</a>)</li>
</ul>



<a name="176105753"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105753" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105753">(Sep 19 2019 at 14:38)</a>:</h4>
<p>^^ perf.rlo will collect profiling data and make comparison view available that let's you compare time spent for each query</p>



<a name="176105777"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105777" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105777">(Sep 19 2019 at 14:38)</a>:</h4>
<p>that's item one</p>



<a name="176105792"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105792" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105792">(Sep 19 2019 at 14:38)</a>:</h4>
<p>item two: Improving the ergonomics of self-profiling</p>



<a name="176105800"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105800" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105800">(Sep 19 2019 at 14:39)</a>:</h4>
<ul>
<li>it's hard to use at the moment</li>
</ul>



<a name="176105826"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105826" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105826">(Sep 19 2019 at 14:39)</a>:</h4>
<ul>
<li>we want to collect use cases on irlo and then try to come up with good, tooling assisted workflows for those use cases</li>
</ul>



<a name="176105836"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105836" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105836">(Sep 19 2019 at 14:39)</a>:</h4>
<ul>
<li>I need to look into <code>cargo -Ztiming</code> because there is some feature overlap here</li>
</ul>



<a name="176105852"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105852" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105852">(Sep 19 2019 at 14:39)</a>:</h4>
<p>item three: Use self-profiling to implement a feature that allows to attribute compile time to specific parts of the source code</p>



<a name="176105860"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105860" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105860">(Sep 19 2019 at 14:39)</a>:</h4>
<ul>
<li>this is a feature often asked for</li>
</ul>



<a name="176105867"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105867" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105867">(Sep 19 2019 at 14:39)</a>:</h4>
<ul>
<li>but we discovered that we don't know what that should look like exactly</li>
</ul>



<a name="176105874"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105874" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105874">(Sep 19 2019 at 14:39)</a>:</h4>
<ul>
<li>the theory behind it is not straightforward</li>
</ul>



<a name="176105881"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105881" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105881">(Sep 19 2019 at 14:39)</a>:</h4>
<ul>
<li>so this feature is currently still in the brainstorming phase</li>
</ul>



<a name="176105930"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105930" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105930">(Sep 19 2019 at 14:40)</a>:</h4>
<ul>
<li>post your ideas/thoughts to: <a href="https://github.com/rust-lang/measureme/issues/51" target="_blank" title="https://github.com/rust-lang/measureme/issues/51">https://github.com/rust-lang/measureme/issues/51</a></li>
</ul>



<a name="176105968"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176105968" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176105968">(Sep 19 2019 at 14:40)</a>:</h4>
<p>questions?</p>



<a name="176106016"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106016" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106016">(Sep 19 2019 at 14:41)</a>:</h4>
<p>We're also soliciting feedback from people on irlo who have thoughts about the existing tooling. So if you have thoughts, please let us know!</p>
<p><a href="https://internals.rust-lang.org/t/compiler-profiling-survey/10969" target="_blank" title="https://internals.rust-lang.org/t/compiler-profiling-survey/10969">https://internals.rust-lang.org/t/compiler-profiling-survey/10969</a></p>



<a name="176106036"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106036" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106036">(Sep 19 2019 at 14:41)</a>:</h4>
<p><span class="user-mention" data-user-id="124287">@mw</span> you shared some links with me back when I started using the tool last week</p>



<a name="176106041"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106041" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106041">(Sep 19 2019 at 14:41)</a>:</h4>
<p>very exciting!</p>



<a name="176106118"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106118" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106118">(Sep 19 2019 at 14:42)</a>:</h4>
<p>they were helpful in terms of getting myself started</p>



<a name="176106135"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106135" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106135">(Sep 19 2019 at 14:42)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> this one probably: <a href="https://github.com/rust-lang/measureme/blob/master/summarize/Readme.md" target="_blank" title="https://github.com/rust-lang/measureme/blob/master/summarize/Readme.md">https://github.com/rust-lang/measureme/blob/master/summarize/Readme.md</a></p>



<a name="176106136"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106136" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106136">(Sep 19 2019 at 14:42)</a>:</h4>
<p>Have we thought about adding in any links to the rustc manual (not the "learn how to hack on rustc" guide, but the "learn how to use rustc") to cover this feature? (I think we should at least add some links to the measureme docs)</p>



<a name="176106146"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106146" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106146">(Sep 19 2019 at 14:42)</a>:</h4>
<p>(minor thing obviously)</p>



<a name="176106161"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106161" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106161">(Sep 19 2019 at 14:42)</a>:</h4>
<p>I think we are not there yet</p>



<a name="176106166"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106166" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106166">(Sep 19 2019 at 14:42)</a>:</h4>
<p>I think that's a mistake :)</p>



<a name="176106178"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106178" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Wesley Wiser <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106178">(Sep 19 2019 at 14:42)</a>:</h4>
<p>There is at least a mention on Profiling the Compiler: <a href="https://rust-lang.github.io/rustc-guide/profiling.html" target="_blank" title="https://rust-lang.github.io/rustc-guide/profiling.html">https://rust-lang.github.io/rustc-guide/profiling.html</a></p>



<a name="176106188"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106188" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106188">(Sep 19 2019 at 14:43)</a>:</h4>
<p>well, not a <em>mistake</em>, I just mean: I wind up pointing at the measureme docs pretty regularly.. it'd be nice if they were easier to find</p>



<a name="176106211"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106211" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106211">(Sep 19 2019 at 14:43)</a>:</h4>
<p>anyway not imp't, sorry to derail</p>



<a name="176106214"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106214" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106214">(Sep 19 2019 at 14:43)</a>:</h4>
<p><span class="user-mention" data-user-id="124287">@mw</span> at the very least, the measureme/Readme.md should provide pointer to measureme/summarize/Readme.md</p>



<a name="176106217"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106217" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106217">(Sep 19 2019 at 14:43)</a>:</h4>
<p>;)</p>



<a name="176106229"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106229" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106229">(Sep 19 2019 at 14:43)</a>:</h4>
<p>because the latter is <strong>way</strong> better than the former</p>



<a name="176106231"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106231" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106231">(Sep 19 2019 at 14:43)</a>:</h4>
<p>yeah, from my point of view this is an alpha level feature still</p>



<a name="176106241"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106241" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106241">(Sep 19 2019 at 14:43)</a>:</h4>
<p>okay anyway</p>



<a name="176106242"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106242" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> nikomatsakis <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106242">(Sep 19 2019 at 14:43)</a>:</h4>
<blockquote>
<p>I think that's a mistake :)</p>
</blockquote>
<p>what I meant by this was: I think users can understand that the feature is in alpha. Maybe I'll stop complaining and just open a PR..</p>



<a name="176106283"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106283" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106283">(Sep 19 2019 at 14:44)</a>:</h4>
<p>this is great stuff</p>



<a name="176106304"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106304" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106304">(Sep 19 2019 at 14:44)</a>:</h4>
<p>though of course, only of use to rustc devs</p>



<a name="176106311"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106311" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106311">(Sep 19 2019 at 14:44)</a>:</h4>
<p>so lets hear about great stuff for everyone else</p>



<a name="176106313"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106313" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106313">(Sep 19 2019 at 14:44)</a>:</h4>
<blockquote>
<blockquote>
<p>I think that's a mistake :)</p>
</blockquote>
<p>what I meant by this was: I think users can understand that the feature is in alpha. Maybe I'll stop complaining and just open a PR..</p>
</blockquote>
<p>OK, I can understand that <code>:)</code></p>



<a name="176106323"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106323" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106323">(Sep 19 2019 at 14:44)</a>:</h4>
<p>(that's my segue to <span class="user-mention" data-user-id="133169">@matklad</span> from WG-rls-2.0)</p>



<a name="176106334"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106334" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106334">(Sep 19 2019 at 14:44)</a>:</h4>
<p>:)</p>



<a name="176106397"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106397" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106397">(Sep 19 2019 at 14:45)</a>:</h4>
<p>So, WG-rls-2.0 havent' reported to t-compiler for a long while, so I'll try to summarize large things that happedn</p>



<a name="176106563"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106563" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106563">(Sep 19 2019 at 14:47)</a>:</h4>
<ul>
<li>we integrated chalk pretty deeply into rust-analyzer and, after plugging a couple of high-level performance problem, it works great.</li>
</ul>



<a name="176106594"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106594" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> mw <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106594">(Sep 19 2019 at 14:47)</a>:</h4>
<p>nice!</p>



<a name="176106736"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106736" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106736">(Sep 19 2019 at 14:49)</a>:</h4>
<ul>
<li>macro by example and associated macro resolution work well enough to cover significant subset of the real world code. Specifically, it works for many macro-generated stdlib impls. Oh, and as of yesterday, we actually feed macro generated <code>impls</code> to chalk, and that's pretty incremental, which is cool, because macros + traits are two harddest bits from the lazyness point of view</li>
</ul>



<a name="176106799"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106799" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106799">(Sep 19 2019 at 14:49)</a>:</h4>
<p>what does "pretty incremental" mean here?</p>



<a name="176106808"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106808" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106808">(Sep 19 2019 at 14:49)</a>:</h4>
<p>Note that the code in rust-analyzer for this is not in a very good shape though: if someone wants to drive name resolution and macro exapnsion in rust-analyzer, feel free to talk to me :)</p>



<a name="176106874"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176106874" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176106874">(Sep 19 2019 at 14:50)</a>:</h4>
<p>pretty incremental == incremental enough to make completion fast</p>



<a name="176107025"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107025" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107025">(Sep 19 2019 at 14:51)</a>:</h4>
<ul>
<li>we added a simple hack to show compiler errors by just running <code>cargo check</code> and, well, showing errors. Basically, what you've always had in emacs via flymake-mode. I don't use my feature myself, but looks like users find it very useful, and it might be a good way to bridge complete,but slow RLS and rust-analyzer</li>
</ul>



<a name="176107125"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107125" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107125">(Sep 19 2019 at 14:52)</a>:</h4>
<p>(btw, we have a meeting about rls/rust-analyzer strategy  later today, if you are interested, feel free to join, there's a neightouring zulip thread for it)</p>



<a name="176107165"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107165" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107165">(Sep 19 2019 at 14:52)</a>:</h4>
<p>where "bridge" here means: Provide utility that effectively matches the diagnostic feedback provided by RLS 1.0, but actually use <strong>none</strong> of the RLS 1.0 code?</p>



<a name="176107256"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107256" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107256">(Sep 19 2019 at 14:53)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> something like this: we guaratee that error highgliting is precise (but not fast), and that completion is fast (but incomplete). As opposed to having only one of these two things</p>



<a name="176107346"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107346" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107346">(Sep 19 2019 at 14:54)</a>:</h4>
<p>And, with RLS moving to out of process architecture, I actually hope to share the code, but I won't talk about it in <em>this</em> meeting :D</p>



<a name="176107429"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107429" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107429">(Sep 19 2019 at 14:55)</a>:</h4>
<ul>
<li>first win of librarification: <code>rustc</code> and <code>rust-analyzer</code> share the same lexer code!</li>
</ul>



<a name="176107439"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107439" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107439">(Sep 19 2019 at 14:55)</a>:</h4>
<blockquote>
<p>(btw, we have a meeting about rls/rust-analyzer strategy  later today, if you are interested, feel free to join, there's a neightouring zulip thread for it)</p>
</blockquote>
<p><a href="#narrow/stream/131828-t-compiler/topic/rls.20.2F.20rust-analyzer.20planing/near/176094563" title="#narrow/stream/131828-t-compiler/topic/rls.20.2F.20rust-analyzer.20planing/near/176094563">link to zulip thread</a></p>



<a name="176107586"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107586" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107586">(Sep 19 2019 at 14:56)</a>:</h4>
<p>/me is forced to admit that he did <del>use</del> play with rust-analyzer earlier in the year but has not kept up with it</p>



<a name="176107607"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107607" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107607">(Sep 19 2019 at 14:56)</a>:</h4>
<ul>
<li>(final thing, I think) after slowing down during august, we are starting the next sprint (epic?) in rust-analyzer. The goal is to library-ify type-relating things: so, chalk + unification + a definition of <code>Ty</code></li>
</ul>



<a name="176107657"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107657" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107657">(Sep 19 2019 at 14:57)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> do it! rust-analyzer is GREAT for hacking on rustc!</p>



<a name="176107744"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176107744" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176107744">(Sep 19 2019 at 14:58)</a>:</h4>
<p>Yeah, it looks like folks find rust-analyzer actually useful:  <a href="https://www.reddit.com/r/rust/comments/d59c41/comment/f0kmc9p" target="_blank" title="https://www.reddit.com/r/rust/comments/d59c41/comment/f0kmc9p">https://www.reddit.com/r/rust/comments/d59c41/comment/f0kmc9p</a></p>



<a name="176108035"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108035" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> matklad <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108035">(Sep 19 2019 at 15:00)</a>:</h4>
<p>And yeah, that's obvious, but <strong>call for participation</strong>: t-compiler experience is sorely needed in rust-analyzer :)</p>



<a name="176108068"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108068" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108068">(Sep 19 2019 at 15:01)</a>:</h4>
<p>okay well this definitely sounds exciting</p>



<a name="176108085"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108085" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108085">(Sep 19 2019 at 15:01)</a>:</h4>
<p>and hopefully motivating for everyone to go out and try to use rust-analyzer</p>



<a name="176108134"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108134" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108134">(Sep 19 2019 at 15:01)</a>:</h4>
<p>(I was scared to even propose the Q of whether it could deal with the <code>rustc</code> code base, so I'm glad <span class="user-mention" data-user-id="126931">@centril</span> beat me to it... assuming their comment wasn't in jest...)</p>



<a name="176108230"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108230" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108230">(Sep 19 2019 at 15:02)</a>:</h4>
<p>So, yeah. This is all awesome</p>



<a name="176108264"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108264" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108264">(Sep 19 2019 at 15:02)</a>:</h4>
<p>And let me just say: It feels really good to have a meeting where we actually went through all the nominated issues</p>



<a name="176108304"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108304" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108304">(Sep 19 2019 at 15:03)</a>:</h4>
<p>next week, maybe we'll shoot for going through all the P-high issues. All ... thirty-f... never mind.</p>



<a name="176108319"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108319" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108319">(Sep 19 2019 at 15:03)</a>:</h4>
<p><span class="user-mention" data-user-id="116083">@pnkfelix</span> not even a little bit in jest; switched from RLS to RA on my 7 year old Windows laptop; the code itself lives on my linux build server to which I connect via a sshfs share -- it works pretty smoothly, the types are mostly there, and it's snappy</p>



<a name="176108346"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108346" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> pnkfelix <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108346">(Sep 19 2019 at 15:03)</a>:</h4>
<p>So, great meeting, thanks for coming everyone in <span class="user-group-mention" data-user-group-id="897">@T-compiler/meeting</span></p>



<a name="176108373"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/131828-t-compiler/topic/weekly%20meeting%202019-09-19%20%2354818/near/176108373" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> centril <a href="https://rust-lang.github.io/zulip_archive/stream/131828-t-compiler/topic/weekly.20meeting.202019-09-19.20.2354818.html#176108373">(Sep 19 2019 at 15:03)</a>:</h4>
<p>Definitely improved my rustc hackery productivity</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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